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Why are emission tests unreliable, yet the testers act like they know it all? One couldn't even find the DLC.
I failed emissions and then circled around and went to a different test stall and passed.
I warmed up the engine and drove a bit prior to getting tested.
I had tested it as well with my 4 gas analyzer and it was within specs.
Also, there was no line so I didn't have to sit and idle at all.
This has happened to me three times in three different vehicles (no fords) in the last 10 years. One was a Chevy sprint, one was a '77 vette L48, one was an Olds Delta 88.
I believe the tests are not accurate or the equipment is miscalibrated, or it's just a money making scheme for the State and Certified Emissions Repair Services.
Also, the last one I took through, ('84 500SEL) failed miserably, Like by 1000%. I threw a tune up and adjusted the timing (which was out 20 degrees) and it ran great so I went for it. This time though, I idled for about 20 minutes while they couldn't input the title data. (this car had never had emissions not required where it came from). Also didn't run it prior.
2 Answers
- 1 decade agoFavorite Answer
Anthony: You are a smart guy. Ever notice the Testing Company IS NOT from the state your living in?
Key word is "Money Making Scheme". I have had to pass Vehicle emissions tests in N.Y., Arizona, Idaho, & Tennessee.
All Hot Rods. Fail first time, readjusted and was back in 15 minutes. Testing company said How and who made repairs.
I said myself, and no repair, ADJUSTMENTS. Passed every time on second pass. One time, I had mufflers with outside baffles. The guy didn't know where to take exhaust sample.
A well tuned stock 1966 Chevrolet Impala with a 2 BBL carb.
(283 CID ) will STILL pass any test in any state.
My opinion: Same as yours. Scam!
Source(s): 40 years hot rod experience, and emission testing. - ?Lv 44 years ago
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